COMPLEXES OF AG(I) WITH 1-METHYL-2(3H)-IMIDAZOLINETHIONE - THE CRYSTAL-STRUCTURE OF TRIS[1-METHYL-2(3H)-IMIDAZOLINETHIONE]-SILVER(I) NITRATE

Three ionic complexes, [Ag(Hmimt)](NO3), [Ag(Hmimt)(2)](NO3) and [Ag(H mimt)(3)](NO3) (Hmimt=1-methyl-2(3H)imidazolinethione), were synthesiz ed by reacting AgNO3 with Hmimt and characterized spectroscopically (m ass, IR and H-1, C-13, N-15 and Ag-109 NMR). The structure of [Ag(Hmim t)(3)](NO3) was determined by X-ray crystallography. In this compound, which crystallizes in the monoclinic system (space group P2(1)/n; a=7 .621(2), b=27.281(5), c=10.256(4) Angstrom, beta=107.89(1)degrees; Z=4 ) the Ag+ ion is trigonally coordinated in the [Ag(Hmimt)(3)](+) catio n, with a mean Ag-S distance of 2.489 Angstrom. The shortest Ag ... O distance is 2.929 Angstrom, and the crystal lattice features an extens ive network of hydrogen bonds.